So I made up a few loads with CFE Pistol for my 40 S&W, 10mm, and my 9mm Luger.

The overall velocities were fine in all three.it isnt worth posting the load data because the bullets I use are from a small company with concave bases and I seat them long. But I will say I usually load 40 S&W 180 gr bullets to 1000 fps, 9 mm 124 gr bullets to 925 fps, and 10 mm 200 Grain bullets to around 1000 fps.

Anyway, I found that CFE Pistol is much more consistent at higher pressure. In all 3 cartridges the extreme spread and standard deviation in velocities dropped as I increased the powder charge.... Substantially actually.

For instance, in my 40 S&W , with 5.9 grains I had an extreme spread of 55 fps and standard deviation of almost 26 fps (avg. Velocity around 950 fps). But at 6.4 graines the extreme spread was 18 fps and standard deviation of approx 7fps. (Avg velocity 1010 fps).

It was similar in 9mm and 10 mm auto. Which makes me think CFE Pistol may not be a very good powder for 45 ACP or it may not be a very good powder to try and download for soft target loads.

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